Being organized wasn't my strongest point, but I implemented a time management system that really helped my organization skills.
I like to make sure that my work is perfect, so I tend to perhaps spend a little too much time checking it. However, I've come to a good balance by setting up a system to ensure everything is done correctly the first time.
I used to wait until the last minute to set appointments for the coming week, but I realized that scheduling in advance makes much more sense.
Sometimes, I spend more time than necessary on a task, or take on tasks personally that could easily be delegated to someone else. Although I've never missed a deadline, it is still an effort for me to know when to move on to the next task, and to be confident when assigning others work.
I had difficulty with calculus during college, but I persevered with tutoring assistance and extra effort and completed 2 levels with a B minus average.